E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
20/25
E04B 2/58 (2006.01) E04B 2/28 (2006.01) E04B 2/60 (2006.01) E04B 2/74 (2006.01) E04B 2/78 (2006.01)
Patent
CA 1044426
APPLICATION FOR LETTERS PATENT FOR STUD FOR FORMING FIRE-RATED WALL AND STRUCTURE FORMED THEREWITH ABSTRACT OF THE DISCLOSURE A metal stud for constructing a fire-rated wall and the wall structure formed of a plurality of studs mounted in runners and having at least a pair of spaced-apart layers of wallboard panels with adjacent panels in abutting relationship, the stud being formed of an integral piece of sheet metal and comprising a single layer web having a first plurality of oppositely directed flange means at one edge thereof and a second pair of oppositely directed flange means connected to the web means at the other end thereof and spaced-apart from the first pair of flange means a sufficient distance to provide a pair of oppositely directed channels receiving the edges of adjacent panels of a single layer, and means extending away from the second pair of oppositely directed flange means and being connected to and supporting a panel spaced apart from the first and second pairs of flange means and adapted to have the wallboard panels of a second layer affixed thereto in parallel spaced-apart relationship with regard to the first layer of wallboard panels. In an improved embodiment a plurality of apertures are provided in the web to reduce heat transfer therethrough and facilitate heat disipation from the wallboard panels, thereby permitting the wall structure to obtain a favorable ASTM fire rating.
253224
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